Bio:This version of Wonder Woman might be said to have not existed, as well, and certainly a number of her adventures are properly assigned to Hippolyta, from a post-Crisis perspective.

It is this version of Wonder Woman that went through the most profound changes. She went from being a fairly bland (read: safe) version of herself that really had a lot in common with the animated Super Friends version. She was all about super powers and kickin' ass, with just a pinch of her Amazonian legacy thrown in. By the early-mid 70s, though, she had abandoned the uniform and powers entirely, and adopted a role much closer to a secret agent. She studied with a martial arts expert, took a job as the proprietor of a hip clothing store, and wasn't seen for a couple of years in her Wonder Woman outfit. This era drew criticism, though, so she regained her powers and went on a 2-year quest to be returned to active duty in the JLA. No sooner had she endured her trials when the Wonder Woman title started telling Earth 2 Wonder Woman stories, in deference to the setting of the Wonder Woman TV show. When the show, in its later seasons, returned to the present, the comic returned to Earth 1, and the newly-JLA-reinstated Wonder Woman.

During the Crisis, Diana was thought to have been killed. However, as the Pérez run would make clear, she hadn't been killed, but sent back in time.

And this, out of all of Wonder Woman's adventures, is where it gets weird.

Somehow, in a way not adequately explained, she wasn't just thrown back in time. She was actually devolved to the day she'd been formed of clay. In other words, the Crisis affected her in a way substantially differently than it did any other character in the DCU. Wonder Woman II and Wonder Woman III are the same person, but neither has knowledge of the other. We speak of "reboots" frequently in assessing the history of comic books, but it's never been so literally true as perhaps it was with Wonder Woman.

What's unfortunate about this method of reinventing the character is that, far from making her history "simpler", as was the intended effect of the Crisis, it makes it much more complicated. Had she been a part of the normal "Crisis effect"--that is, had she been reset precisely as the rest of the DCU--her story would've just started at whatever point the writers wanted to set. But in drawing this link between pre- and post-Crisis Diana, and in demonstrating that she actually "devolved" from one to the other, she confusingly becomes a "non-surviving survivor" of Crisis on Infinite Earths.
For a discussion of this character's costume evolution, please click here.